Which one of the following is incorrect about Porifera?

1.Presence of spongin fibres

2.Cellular level of organisation

3.Presence of mouth and digestive cavity

4.Pores all over the body

Subtopic:  Phylum Porifera |
 87%
From NCERT
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Which of the following cell of sponges contains flagella

1. Nematocyst

2. Spongioblast

3. Amoebocyte

4. Choanocytes

Subtopic:  Phylum Porifera |
 84%
From NCERT
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Which of the following sponge has radial symmetry

1.Spongilla

2.Scypha

3.Leucosolenia

4.Both 2 and 3

Subtopic:  Phylum Porifera |
From NCERT
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Which of the following is true about the given organism?

            

1.It is a medusa form of Aurelia

2.It is Fresh water sponge

3.Central canal system is present in it

4.It’s mouth is formed first

Subtopic:  Phylum Porifera |
 55%
From NCERT
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Which of the following is true about the following  organism?

          

1. Radial symmetry is present

2. Fertilisation is external

3. Multicellular animal

4. Coelomate organism

Subtopic:  Phylum Porifera |
 69%
From NCERT
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Which of the following is  not true about the given organism?

                       

1.Bilateral symmetry is present

2.Hermaphrodite

3.Indirect development

4.Acoelomate organism

Subtopic:  Phylum Porifera |
 80%
From NCERT
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The name of the phylum Cnidaria is derived from the

1.Nematocysts

2.Cnidoblasts

3.Cnidocytes

4.Both 2 and 3

Subtopic:  Phylum Coelenterata |
 80%
From NCERT
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Stinging capsule present in Cnidarians is called

1.Nematocysts

2.Choanocytes

3.Cnidocytes

4.Both 2 and 3

Subtopic:  Phylum Coelenterata |
 63%
From NCERT
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Cnidocytes are used for

1.Anchorage

2.Defence

3.Capturing of prey

4.All of these

Subtopic:  Phylum Coelenterata |
 97%
From NCERT
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Which of the following is not true about Cnidarians

1.Radial symmetry

2.Diploblastic

3.Tissue level of organisation

4.Deutrostomes

Subtopic:  Phylum Coelenterata |
 89%
From NCERT
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